Use a smart pointer for SkColorSpace factories

src/codec/SkWbmpCodec.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkCodec_wbmp_DEFINED
 #define SkCodec_wbmp_DEFINED
 
 #include "SkCodec.h"
+#include "SkColorSpace.h"
 #include "SkSwizzler.h"
 
 class SkWbmpCodec final : public SkCodec {
 public:
     static bool IsWbmp(const void*, size_t);
 
     /*
      * Assumes IsWbmp was called and returned true
      * Creates a wbmp codec
      * Takes ownership of the stream
@@ skipping 32 matching lines @@
 
     int onGetScanlines(void* dst, int count, size_t dstRowBytes) override;
     bool onSkipScanlines(int count) override;
     Result onStartScanlineDecode(const SkImageInfo& dstInfo, const Options& options,
             SkPMColor inputColorTable[], int* inputColorCount) override;
 
     typedef SkCodec INHERITED;
 };
 
 #endif  // SkCodec_wbmp_DEFINED